/* ===== CSS Variables ===== */
:root {
    /* Colors - Premium Dark Theme */
    --color-bg: #050508;
    --color-bg-secondary: #0a0a0f;
    --color-bg-tertiary: #12121a;
    --color-surface: #1a1a25;
    --color-surface-hover: #222230;
    
    /* Accent Colors - Electric Blue & Gold */
    --color-primary: #00d4ff;
    --color-primary-dark: #0099cc;
    --color-primary-light: #66e5ff;
    --color-secondary: #ffd700;
    --color-secondary-dark: #cc9900;
    
    /* Text Colors */
    --color-text: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #606070;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0066ff 100%);
    --gradient-secondary: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0f 0%, #050508 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.3);
    --shadow-gold: 0 0 40px rgba(255, 215, 0, 0.2);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

img {
    max-width: 100%;
    display: block;
}

/* ===== Loader ===== */
.loader {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-logo {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
    animation: pulse 1.5s ease-in-out infinite;
}

.loader-bar {
    width: 200px;
    height: 2px;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.loader-progress {
    width: 0%;
    height: 100%;
    background: var(--gradient-primary);
    animation: loading 2s ease forwards;
}

@keyframes loading {
    to { width: 100%; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===== Particle Canvas ===== */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(5, 5, 8, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-icon {
    color: var(--color-primary);
    font-size: 1.2rem;
}

.logo-text {
    letter-spacing: 0.1em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
}

.nav-cta:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--shadow-glow);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-normal);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(5, 5, 8, 0.98);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-links {
    list-style: none;
    text-align: center;
}

.mobile-nav-links li {
    margin: 1.5rem 0;
}

.mobile-nav-link {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(5, 5, 8, 0.95) 0%,
        rgba(5, 5, 8, 0.7) 40%,
        rgba(5, 5, 8, 0.4) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.title-line.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation-delay: 0.4s;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-subtitle .accent {
    color: var(--color-primary);
    font-weight: 700;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeInUp 0.8s ease 1s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-bg);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-text);
}

.btn-icon {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-normal);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

.play-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 0.7rem;
}

/* Hero Stats */
.hero-stats {
    position: absolute;
    bottom: 8rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 4rem;
    z-index: 2;
}

.stat-item {
    text-align: center;
    animation: fadeInUp 0.8s ease 1.2s both;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.stat-unit {
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-left: 0.25rem;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    animation: scrollWheel 1.5s infinite;
}

.scroll-text {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.1em;
}

@keyframes scrollWheel {
    0%, 100% { opacity: 1; transform: translateY(0); }
    50% { opacity: 0.3; transform: translateY(8px); }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ===== Section Styles ===== */
section {
    position: relative;
    padding: var(--space-xl) var(--space-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.section-header.light {
    color: var(--color-text);
}

.section-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-title .accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Models Section ===== */
.models {
    background: var(--color-bg);
}

.models-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.model-card {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-normal);
    position: relative;
}

.model-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.model-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.1);
}

.model-card:hover::before {
    opacity: 1;
}

.model-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.model-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.model-card:hover .model-image img {
    transform: scale(1.1);
}

.model-glow {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--color-bg-tertiary), transparent);
}

.model-info {
    padding: 2rem;
}

.model-name {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.model-badge {
    font-size: 0.65rem;
    padding: 0.3rem 0.6rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.model-badge.new {
    background: var(--gradient-secondary);
    color: var(--color-bg);
}

.model-tagline {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.model-specs {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.spec {
    text-align: center;
}

.spec-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.spec-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.model-price {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.price-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.price-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.model-cta {
    width: 100%;
    padding: 1rem;
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-normal);
}

.model-cta:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* ===== Performance Section ===== */
.performance {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0;
}

.performance-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.performance-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.performance-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        rgba(5, 5, 8, 0.98) 0%,
        rgba(5, 5, 8, 0.85) 50%,
        rgba(5, 5, 8, 0.6) 100%
    );
}

.performance-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

.performance-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.performance-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
}

.performance-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.performance-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--color-primary);
}

.performance-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.performance-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ===== Technology Section ===== */
.technology {
    background: var(--color-bg);
}

.tech-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
    align-items: center;
}

.tech-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tech-feature {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-normal);
}

.tech-feature:hover {
    border-color: var(--color-primary);
    background: var(--color-surface);
}

.tech-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.tech-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tech-info p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.tech-visual {
    position: relative;
}

.tech-image-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.tech-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
}

.tech-hologram {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(0, 212, 255, 0.1) 50%,
        transparent 60%
    );
    animation: hologram 3s infinite;
}

@keyframes hologram {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

.tech-scan-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary);
    box-shadow: 0 0 20px var(--color-primary);
    animation: scanLine 3s linear infinite;
}

@keyframes scanLine {
    0% { top: 0; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* ===== Gallery Section ===== */
.gallery {
    background: var(--color-bg-secondary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 300px);
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(5, 5, 8, 0.9) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.gallery-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ===== Config Section ===== */
.config {
    background: var(--color-bg);
}

.config-table-container {
    max-width: 1000px;
    margin: 0 auto;
    overflow-x: auto;
}

.config-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.config-table th,
.config-table td {
    padding: 1.25rem 1.5rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.config-table th {
    background: var(--color-surface);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.config-table th:first-child {
    text-align: left;
}

.config-table td:first-child {
    text-align: left;
    color: var(--color-text-secondary);
}

.config-table .highlight-col {
    background: rgba(0, 212, 255, 0.03);
}

.config-table .highlight-col.best {
    background: rgba(0, 212, 255, 0.08);
    position: relative;
}

.config-table .highlight-col.best::before {
    content: '推荐';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    padding: 0.25rem 0.75rem;
    background: var(--gradient-primary);
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.config-table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.03);
}

/* ===== Contact Section ===== */
.contact {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0;
}

.contact-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.contact-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(5, 5, 8, 0.98) 0%,
        rgba(5, 5, 8, 0.85) 50%,
        rgba(5, 5, 8, 0.7) 100%
    );
}

.contact-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    width: 100%;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin: 1rem 0;
}

.contact-desc {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.contact-icon {
    font-size: 1.2rem;
}

.contact-form {
    background: var(--color-bg-tertiary);
    padding: 3rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 1rem 1rem 1rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    outline: none;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus {
    border-bottom-color: var(--color-primary);
}

.form-group label {
    position: absolute;
    left: 0;
    top: 1rem;
    color: var(--color-text-secondary);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition-normal);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group select:focus + label,
.form-group select:not([value=""]) + label {
    top: -0.5rem;
    font-size: 0.8rem;
    color: var(--color-primary);
}

.form-group select {
    appearance: none;
    cursor: pointer;
}

.form-group select option {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.date-label {
    position: absolute;
    left: 0;
    top: -0.5rem;
    font-size: 0.8rem;
    color: var(--color-primary);
}

.form-submit {
    width: 100%;
    padding: 1.25rem;
    background: var(--gradient-primary);
    border: none;
    color: var(--color-bg);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: var(--transition-normal);
}

.form-submit:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg-secondary);
    padding: var(--space-lg) var(--space-md) var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr repeat(4, 1fr);
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-slogan {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border-radius: 50%;
    transition: var(--transition-normal);
}

.social-link:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-column h4 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    max-width: 1400px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(5, 5, 8, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-bg-tertiary);
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 400px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-glow);
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.modal-content h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.modal-content p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.modal-close {
    padding: 0.75rem 2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-normal);
}

.modal-close:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .models-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .performance-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-container {
        grid-template-columns: 1fr;
    }
    
    .tech-visual {
        order: -1;
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 1.5rem;
        bottom: 6rem;
    }
    
    .stat-item {
        flex: 1 1 calc(50% - 1rem);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .models-container {
        grid-template-columns: 1fr;
    }
    
    .performance-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 200px);
    }
    
    .gallery-item.large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-xl: 4rem;
        --space-lg: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .stat-value {
        font-size: 1.8rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item.large {
        grid-column: span 1;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-surface);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ===== Selection ===== */
::selection {
    background: var(--color-primary);
    color: var(--color-bg);
}